My last couple months with jacks has been hell with 3/2/1. Always chasing deficienciesRight? lol. I randomly clicked with no idea it was the same nute regimen I am running for first time and really needed to learn about. On top of that it is done to perfection.
I have been absent for many years from the mag but came back recently and the past two pages of contributors has renewed my faith in knowledgeable and competent posters still being around.
My last couple months with jacks has been hell with 3/2/1. Always chasing deficiencies
Im running 2 solis tek de 1k with philips bulbs with a generic 630 cmh between them with philips bulbs.You getting them in flower as well? Greengenes formula? He is who put me onto it. I ran 760 ppm 3.6/2.4/1.2 from clone to now 15 inches veg. At 10 inches virtually all bad signs disappeared my first sign I was giving too much as I suspected from start and not too little). I now have perfect plants but for a very slight cal deficiency on some I noticed last night which I am assuming why Erics formula has bit more. I am switching to the formula here on a new set of test clones as we speak and will report back.
I am sure with the experience here both you and me will be squared away after a run or two so hang in there
PS what lights are you using?
Eric2028 veg and stretch solution:
3 grams jacks 5-12-26
2.5 grams caltrate
145.837ppm N
43.33ppm P
178.45ppm K
120.83ppm Ca
52.5ppm Mg
68.33ppm S
2.5ppm iron
0.4167ppm Mn
0.125ppm Zn
0.125ppm Cu
0.4167ppm B
0.083ppm Mo
My recommend modification to Eric2028's veg and stretch formula (more caltrate):
3 grams jacks 5-12-26
3.32 grams caltrate
180ppm N
43.33ppm P
178.45ppm K
160.46ppm Ca
52.5ppm Mg
68.33ppm S
2.5ppm iron
0.4167ppm Mn
0.125ppm Zn
0.125ppm Cu
0.4167ppm B
0.083ppm Mo
Eric2028 bloom solution for after stretch ends:
(This is great as is)
3 grams jacks 5-12-26
2.5 grams caltrate
0.5 gram monopotassium phosphate
145.837ppm N
73.33ppm P
215.95ppm K
120.83ppm Ca
52.5ppm Mg
68.33ppm S
2.5ppm iron
0.4167ppm Mn
0.125ppm Zn
0.125ppm Cu
0.4167ppm B
0.083ppm Mo
Jack's is usually used with the 3-2-1 formula? Greengene has done a lot of videos on said formula and he usually grows really nice bud:
https://www.youtube.com/watch?v=KUoTFGXfb60
need to start with one or two wet to bone dry cycles. To the point petioles droop but before stems do. After one of these cycles do you see roots poking out all over the bottom...yes, move on to daily watering with runoff; no, repeat the dry down
How fast that can happen will depend on transpiration. I find 80F, 80-85rH% and 500-600 par 18 hrs per day...if you have t5s slammed down about 8 inches above the tops
Now you are set up for healthy growth, which happens to be shockingly fast growth
Counting on what is on the cation exchange sites of coco is never a good idea. Inevitably there is too much K, and Mg (I have seen 20% on coco with an M3) and not enough Ca. You are feeding toddlers sugar from the get vs high fat and protein
I start my plants in 6 inch with an EC of 2.4 of a balanced mix. I water to a lot of runoff and then let them sit one day before planting
Remember my goal is to fill that pot with roots ASAP with a dry down that makes Ca way more available. If you go 0.8 you are going to run out of food way before water
When I roll into daily feed I stay with 2.4
In early veg I use lower P by replacing it with either sulfate or silicate. But this is a minor one and you won’t see a big diff
I realize 2.4 might make you think I am an idiot. But unlike bottle nutes you have the balance to pull it off. I would urge at least 1.8
View attachment 480636
6 inch regular ol nursery pot. Fed mostly 2.4 since day 1 in this pot. I tried cutting feed back but stems started getting hollow and petioles red...so back up it went
This one also has very low P. P=Mg=0.2 Ca. An experiment based on fluence bioengineering research that says 24 ppm P is enough. I couldn’t go less than 40 but it is working for me. That is a real OG looking too stout.
You want that dry down to happen in 5-7 days. Move some air to control how fast it happens
View attachment 492818
This clone is in a 2 inch pot (CO thing) under 4 t5s fed 164-30-164-200-30 2-3x per day. There is no tip burn
I run wet/dry cycles for the entire time the clone is in the cup. Eventually though it drys out daily and requires daily watering. In veg I initially run wet/dry cycles also. By about week 3 they require daily watering. If I happen to see any deficiencies in veg it’s usually time to start watering daily and it clears up. I run that 3/2.5 mix from right out the cloner to flush at full strength.
hi, mixing equal weight is wrong. their instructions show several ways to mix it.
they recommend equal volume.
however, as snook mentioned, the best way to mix is by ec or ppm.
you also won't need any magnesium sulfate, the base formula has over 6% magnesium.
i'm going to assume that you don't have a meter and that's why you are talking about mixing by weight.
if you take a 1/4 teaspoon plus a 1/8 teaspoon of each, 3/8 teaspoon total of each, you will get approx 750 ppm or ec 1.5. this is per gallon.
if you do have a meter, you don't need to measure water volume.
600 ppm is 360 ppm jacks and 240 ppm calcinit 240/360=.67
750 ppm is 450 ppm jacks and 300 ppm calcinit 300/450=.67
900 ppm is 540 ppm jacks and 360 ppm calcinit 540/360=.67
i cannot imagine a situation where you will need a solution stronger than this.
i have grown a 22.5 oz plant in a 3.5 gal container of coco with 600 ppm for life with no displays or problems, no additives or boosters or even ph adjusters.
if you mix it properly you won't have any ph issues.
the ratio is 1/.67 jacks/calcinit
d9
I need to get an RO system.Figure I will give a noob update while we wait for the real deal
I was able to recoup plants to looking pretty damn good and cloned them for another tester round. I am pretty sure I set my self up for failure by not using RO water even with the advice given here. I am waiting on the RO unit the OP purchased to arrive and will hopefully have it set up by Friday. Then we start again =)
I also did some testing with GH 6/9 which I previously used to perfection with 0 RO water or anything really other than a pH pen. Entirely different water source however. Plants have issues that got it which has led me to believe that RO was the key.
So major noob mistakes everyone can learn from:
1. Use RO water. No exceptions.
2. Mix by PPM's not by weight!!! Mix your NPK then your Cal nit. If using MG (not recommended) for whatever reasons add before Cal nit.
3. Let everything FULLY dissolve before adding any other part of the nutrient mix. Using hot water speeds this up ten fold.
4. Don't drown vegging plants in coco, especially seedlings. Do a wet dry cycle much like soil. You can drown plants in coco if roots aren't established. I have had to learn this lesson twice now. I looked back at old posts of mine in coco and sure enough wet/dry cycle was what I was using in veg and being very light with watering seedlings like teaspoon or less to prevent drying out of seedling when needed. Then let it sit till it dries up a bit half way down from top of container and then water.
5. Don't feed seedlings until cotyledon leaves use up their nutrients. I have lush green seedlings with just 320 ppm clonex. Will be working on jacks formula over time but for now clonex solution is an ok crutch.
Well said sir!! A couple thoughts I wanted to mention. I Havnt cracked beans lately but previously for seedling I would use a spray bottle to moisten them very early on. You don’t have to drench them. Just spray the surface of your medium to moist only when it’s dry(but not bone dry). There is a learning curve. I’ve never lost a seedling ever. Also, I do still mix by weight but here’s a couple things to do.Figure I will give a noob update while we wait for the real deal
I was able to recoup plants to looking pretty damn good and cloned them for another tester round. I am pretty sure I set my self up for failure by not using RO water even with the advice given here. I am waiting on the RO unit the OP purchased to arrive and will hopefully have it set up by Friday. Then we start again =)
I also did some testing with GH 6/9 which I previously used to perfection with 0 RO water or anything really other than a pH pen. Entirely different water source however. Plants have issues that got it which has led me to believe that RO was the key.
So major noob mistakes everyone can learn from:
1. Use RO water. No exceptions.
2. Mix by PPM's not by weight!!! Mix your NPK then your Cal nit. If using MG (not recommended) for whatever reasons add before Cal nit.
3. Let everything FULLY dissolve before adding any other part of the nutrient mix. Using hot water speeds this up ten fold.
4. Don't drown vegging plants in coco, especially seedlings. Do a wet dry cycle much like soil. You can drown plants in coco if roots aren't established. I have had to learn this lesson twice now. I looked back at old posts of mine in coco and sure enough wet/dry cycle was what I was using in veg and being very light with watering seedlings like teaspoon or less to prevent drying out of seedling when needed. Then let it sit till it dries up a bit half way down from top of container and then water.
5. Don't feed seedlings until cotyledon leaves use up their nutrients. I have lush green seedlings with just 320 ppm clonex. Will be working on jacks formula over time but for now clonex solution is an ok crutch.
I need to get an RO system.
Im with you on the wet dry cycle. For me, until Ive really rootbound a container. Wet/dry is absolutely necessary.
I am not great with seedlings. Got 9 nila wafers going on like 4 weeks. Fed nothing but bacteria and a cap full of kelp per 5 gal. Healthiest seed plants Ive ever had. Didnt lose any to damping off.
Going to try mixing by ppm tonight for main res. Kind of a pain with my truncheon. What scale are these instructions above? I pay mind to ec these days due to ppm being 2 dif scales
Well said sir!! A couple thoughts I wanted to mention. I Havnt cracked beans lately but previously for seedling I would use a spray bottle to moisten them very early on. You don’t have to drench them. Just spray the surface of your medium to moist only when it’s dry(but not bone dry). There is a learning curve. I’ve never lost a seedling ever. Also, I do still mix by weight but here’s a couple things to do.
1. Always store powder nutes of any kind in an airtight container. I like 5 gallon black buckets with gamma seal lids(on amazon).
2. Always store said containers in a controlled environment. Obviously high humidity being the biggest issue.
3. Calibrate your meter. Fill a 5 gallon bucket with ro water, make sure it’s exactly 5 gallons. Check your ec, Write it down. Now add part A, check your ec, write it down. Now add part B, check your ec, write it down. Now check your ph and yes write it down. Now you know exactly where your values always need to be know matter what. Sorry to spell this out for the old pros but it’s helpful for guys getting their feet wet.
I use ec but a quick way to convert it to the 500 scale is for example 1.74 ec x1000/2=870 ppm on .5 scale. Hope that helps.
I ll get an update very soon friends!!